Dehorning device



June 5, 1956 L, GRAY 2,748,475

DEHORNING DEVICE:

Filed Dec. 23, 1954 2 sheets-sheet 1 L. L. GRAY DEHORNING DEVICE June 5, 1956 2 sheets-sheet 2 Filed Dec. 25, 1954 INVENTOR. awzmzcg ATTE! RN EYS DEHORNING DEVICE Lawrence L. Gray, Franklin, Nebr.

Application December 23, 1954, Serial No. 477,365

6 Claims. (Cl. 30-167) This invention relates to a dehorner, and more particularly to a power operated dehorner for cutting or removing horns from cattle.

The object of the invention is to provide a power operated dehorning device which will permit the user to readily sever or remove horns from cattle quickly and easily.

Another object of the invention is to provide a power operated cattle dehorning device which is adapted to be connected to a suitable source of electrical energy whereby a circular saw or cutting blade will be rotated and wherein there is provided a guiding means for insuring that the horn is effectively severed.

A further object of the invention is to provide a power operated dehorner which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same:

Figure 1 is a top plan view of the dehorner, constructed according to the present invention.

Figure 2 is a plan View of the plate.

Figure 3 is a sectional view taken on the line 3-3 of Figure 1.

Figure 4 is a plan view illustrating the position of the parts in shifted position.

Referring in detail to the drawings, the numeral designates a base which can be made of any suitable material such as metal, and the base 10 has a rib or ange 11 depending therefrom. Extending upwardly from the base 10 is a hollow tubular casing 12 which has a ange 14 secured to the upper surface of the base by suitable securing elements such as bolt and nuts assemblies 15, Figure 3. Positioned in the casing 12 is a bushing 16, and proiecting through the bushing 16 is a rotary shaft 17. The outer or upper end of the shaft 17 is adapted to be connected to a flexible shaft 1S which is indicated by the dotted lines in Figure 3 and the exible shaft 18 can be driven by any suitable motor or power source. Collars 19 and 20 are mounted on the shaft 17 adjacent the ends of the bushing 16. A clamp 21 which is in the form of an arcuate plate is positioned in the casing 12 and abuts the bushing 16, and suitable set screws 22 extend through the casing l2 and engage the clamp 21 so that by tightening or screwing in the bolts 22, the clamp 21 will retain the bushing 16 in place in the casing 12.

Extending outwardly from the casing 12 and secured thereto is a hollow sleeve 23 which has a handle member 24 arranged in engagement therewith.

The base 1b is provided with an arcuate slot 25 through which a horn of an animal is adapted to be projected whereby the horn can be cut or severed by means of a rotary saw blade 26. The rib 11 which depends from the base 141 serves to prevent a person from being injured by the rotating saw blade 26, and the blade 26 is secured to the shaft 17 through the medium of a hub 27. Pivotally con nited States Patent y ICC nected to the undersurface of the base 10 is a plate 28, Figure 2. The plate 28 is pivotally connected to the base 10 through the medium of a pin or bolt and nut assembly 29 and the bolt 29 extends through both the base and the plate. The base 10 is provided with an arcuate slit or cutout 30, and a guide pin or bolt 31 extends through the slit 30 and is connected to the plate 28. Thus, the plate 28 can pivot with respect to the base 10, with the pivot axis extending through the bolt 29. The pin or bolt 31 which extends through the slit 30 serves as a guide whereby the base and plate are maintained in their proper positions.

The plate 28 is further provided with a circular opening 32 which is adapted to register with the slot 25 in the base 10, whereby the horn to be severed can be extended through the registering opening 32 and slot 25. The plate 28 further includes a cutout 33, Figure 2, and the cutout 33 serves as a guide to help guide the horn into the opening 32 so that as the plate 28 is shifted or pivoted, the horn will be moved into engagement with the rotary saw blade 26 to be severed. A portion of the plate 28 is cut away as at 34 so as to provide clearance whereby any particles of horn which result from the sawing operation will be able to fall out of the cutting device without clogging up the parts.

There is further provided a pair of rods 35 which are secured to the undersurface of the plate 28 by suitable bolt and nut assemblies 36, Figure 3. A handle member 37 extends between the pair of rods 35 and is secured thereto, and it will be seen that the rods 35 have an arcuate formation so that the handle member 37 is positioned above the base 10. Thus, the entire device can be readily gripped by means of the pair of handles 37 and 24. The undersurface of the plate 28 which surrounds the opening 32 is beveled or tapered as at 38 so as to permit a closer cutting of the horn with respect to the animals body.

From the foregoing it is apparent that there has been provided a tool which is especially suitable for use in dehorning or severing horns from various types of cattle. In use the device is gripped with one hand on the handle 37 and with the other hand on the handle 24. The flexible shaft 18 is connected to the upper end of the shaft 17, and the flexible shaft 1S can be driven from any suitable power source. This rotation of the shaft 17 results in rotation of the rotary blade 26. Then, with the parts arranged in the solid line position of Figure 4, the horn to be severed is projected through the registering opening 32 in the plate 28 and through the slot 25 in the base 10. Then, as the parts are moved from the solid line position of Figure 4 to the dotted line position of Figure 4, the rotary blade 26 will be brought into engagement with the horn to thereby sever the horn quickly and easily. Due to the provision of the pivot pin 29, the base 10 and plate 2S can move with respect to each other so that the horn or blade can be readily guided into its proper position. After the horn has been severed the parts can be returned or moved to open position ready to sever another horn. By screwing in on the bolts 22, the clamp 21 will maintain the bushing 16 in place in the casing 12. The bolt 31 projects through the slit 30 to thereby guide the plate and base as they pivot with respect to each other. The entire device can be readily disassembled when it is to be cleaned since it is only necessary to remove the bolts 29 and 31 to take apart the tool. Also, there will be no ob structions which have a tendency to collect particles that may retain germs thereon. The beveled surface 38 permits the horn to be severed extremely close to the head of the cattle. If desired the base and plate can be made of aluminum so as to insure that the device will be light in Weight. The handle 24 can be secured to the sleeve 23 by a suitable securing element such as a rivet.

Iclaim:

1. A power operated cattle dehorning device, comprising a base provided with an arcuate slot, a hollow casing including a lower flange secured to the upper surface of said base, a rotary shaft extending through said casing and adapted to be connected to a source of power, a bushing surrounding said shaft and positioned in said casing, a rib depending from said base, a circular saw blade arranged contiguous to the lower surface of said base and connected to said shaft, a sleeve extending outwardly from said casing and secured thereto, there being an arcuate slit in said base, a plate pivotally arranged contiguous to the lower surface of said base, there being a circular opening in said plate registering with the slOt in said base, a pivot pin interconnecting said plate and base together, a securing element extending from said plate through the slit in said base, a pair of curved bars extending from said plate and secured thereto, and a handle extending between said pair of bars and secured thereto said blade capable of being moved so that it overlaps the registering opening and slot so that it can cut a horn extending through said opening and slot.

2. The structure as defined in claim l, and further including a clamp arranged in said easing and engaging said bushing, and securing elements extending through said casing and engaging said clamp.

3. The structure as defined in claim l, and further including a handle member arranged in engagement with said sleeve.

4. The structure as defined in claim 1, wherein the lower surface of said plate around said circular opening is beveled.

5. in a cattle dehorning device, a base provided with a slot, a casing extending upwardly from said base and secured thereto, a shaft extending through said casing and adapted to be connected to a source of supply of power, a circular blade connected to said shaft, and a plate pivotally connected to said base and provided with an opening for registering with the slot in said base, said biade capabie or" being moved so that it overlaps the registering opening and slot so that it can cut a horn extending through said opening and slot.

6. In a cattle dehorning device, a base provided with a slot, a casing extending upwardly from said base and secured thereto, a shaft extending through said casing adapted to be connected to a source of supply of power, a circular' blade connected to said shaft, and a plate pivotally connected to said base and provided with an opening for registering with the slot in said base, and handle members connected to said plate and casing said blade capable of being moved so that it overlaps the registering opening and slot whereby the blade can cut a horn extending through said opening and slot.

Deibert Nov. 24, 1931 ons July 14, 1953 

